PrestaShop Category Order
In this case, customers will checkout and pay the charges of the products which they want to get after availability of product in the store.
This Pre Order and Notification plugin is available at PrestaShop Official Marketplace also. http://addons.prestashop.com/en/registration-ordering-process/18819-pre-order-notification.html
PrestaShop 1.6.x or later
Top Features of PrestaShop Category Order
Only registered users can enable the option " Notify me when available in the stock
Please note that all comments are moderated and you must be a registered user to provide both product ratings and comments. You can only provide a single rating against our products. Enter your product review below and click on "Post Review". Please note that all comments are moderated by site administrators and will be published as "Confirmed" only when Order/Payment ID is verified by the publisher of the product. Comments and reviews "Not confirmed" by the publishers will not count toward the total product rating. We reserve the right to remove any posting that we deem offensive or inappropriate.